NVMFS4841NWFT1G Equivalent & Substitute Parts

Part Overview

The NVMFS4841NWFT1G is an N-Channel MOSFET manufactured by onsemi, rated for 30V drain-to-source voltage with 16A continuous drain current at 25°C. This device is packaged in a 5-DFN (5x6) surface mount configuration and is qualified to AEC-Q101 automotive standards. The part is currently listed as obsolete, making identification of equivalent substitute components necessary for ongoing design support and procurement continuity.

Substiute Parts

NVMFS4841NWFT1G

onsemiIn Stock: 3399NVMFS4841NWFT1G Datasheet

Current PartRFQ

NVMFS4C310NWFT1G

onsemiIn Stock: 991NVMFS4C310NWFT1G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the NVMFS4841NWFT1G is determined by the following critical parameters:

Electrical Compatibility Criteria:

• FET Type: N-Channel topology must be maintained
• Drain to Source Voltage (Vdss): Minimum 30V rating required
• Continuous Drain Current (Id) @ 25°C: Minimum 16A (Ta) required
• On-State Resistance (Rds On): Must not exceed specified maximum values
• Gate Threshold Voltage (Vgs(th)): Must fall within acceptable operating range
• Gate Charge (Qg): Must be compatible with driver circuit requirements
• Input Capacitance (Ciss): Must be compatible with switching characteristics

Mechanical & Environmental Compatibility Criteria:

• Mounting Type: Surface Mount required
• Package / Case: 8-PowerTDFN, 5 Leads or equivalent footprint
• Operating Temperature Range: Must support -55°C to 175°C (TJ)
• Grade: Automotive qualification required
• Qualification: AEC-Q101 certification required
• RoHS Status: ROHS3 Compliant required
• Moisture Sensitivity Level (MSL): 1 (Unlimited) required

The NVMFS4C310NWFT1G qualifies as a direct substitute based on matching electrical ratings, automotive qualification, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The NVMFS4C310NWFT1G is a qualified substitute for the NVMFS4841NWFT1G based on the following engineering criteria:

Compliance & Certification Alignment: Both parts maintain identical automotive grade classification and AEC-Q101 qualification status, ensuring compatibility with automotive design requirements and supply chain standards.

Regulatory Compliance: Both parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, meeting environmental and handling requirements without modification to assembly processes.

Electrical Performance: The substitute part exceeds the minimum continuous drain current requirement (17A Ta versus 16A Ta), providing equivalent or improved performance in the target application. Both parts operate across the identical -55°C to 175°C temperature range.

Product Status Advantage: The substitute part carries Active product status, ensuring long-term availability and supply chain continuity compared to the obsolete main part.

Packaging Consideration: The substitute part is supplied in Tape & Reel (TR) packaging, which is standard for high-volume production environments and differs from the main part's packaging specification. Verify packaging compatibility with assembly equipment and procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can the NVMFS4C310NWFT1G directly replace the NVMFS4841NWFT1G in existing designs?

A: Yes, the NVMFS4C310NWFT1G meets or exceeds all critical electrical parameters (Vdss, Id, Vgs(th)) and maintains identical automotive qualification (AEC-Q101) and compliance certifications (ROHS3, MSL 1). Both parts are N-Channel MOSFETs with 30V ratings and compatible operating temperature ranges. Verify PCB footprint compatibility with the 8-PowerTDFN, 5-Lead package specification.

Q: What is the primary difference between these two parts?

A: The main difference is product status: the NVMFS4841NWFT1G is obsolete, while the NVMFS4C310NWFT1G is active. The substitute part also provides higher continuous drain current (17A Ta, 51A Tc) compared to the main part (16A Ta), and is supplied in Tape & Reel packaging rather than the main part's original packaging format.

Q: Are there any thermal performance differences?

A: The NVMFS4C310NWFT1G demonstrates higher thermal performance under case temperature conditions (51A Tc versus the main part's specification), indicating improved thermal characteristics. Both parts support the full -55°C to 175°C operating temperature range.

Q: Does the packaging change affect circuit performance?

A: No. Both parts use the same 8-PowerTDFN, 5-Lead package footprint. The packaging difference (Tape & Reel versus original format) affects procurement and assembly logistics only, not electrical or thermal performance.

Q: Are both parts suitable for automotive applications?

A: Yes. Both parts carry Automotive grade classification and AEC-Q101 qualification, meeting automotive industry standards for reliability and quality. Both maintain ROHS3 compliance and MSL 1 moisture sensitivity ratings.

Q: What should be verified before implementing the substitute part?

A: Verify PCB footprint compatibility with the 8-PowerTDFN, 5-Lead package, confirm assembly equipment compatibility with Tape & Reel packaging format, and validate that the higher continuous drain current (17A Ta) does not introduce unintended circuit behavior in current-limiting applications.